Add pre-built zlib library

git-svn-id: svn://svn.code.sf.net/p/firebird/code/firebird/trunk@60316 65644016-39b1-43b1-bf79-96bc8fe82c15
Support for zlib on Windows

git-svn-id: svn://svn.code.sf.net/p/firebird/code/firebird/trunk@60317 65644016-39b1-43b1-bf79-96bc8fe82c15